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Home Q & A Board Biology-Related Homework Help Medicine Nursing and Clinical
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6 years ago
A nurse is reviewing the electrocardiogram (ECG) results. Which portion of the conduction system does the nurse consider when evaluating the P wave?
 
  a. SA node
  b. AV node
  c. Bundle of His
  d. Purkinje fibers
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#1
6 years ago
ANS: A
The P wave represents the electrical conduction through both atria; the SA node initiates electrical conduction through the atria. The AV node conducts down through the bundle of His and the Purkinje fibers to cause ventricular contraction.
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